Home / 21,000.84-31,501.32-14,407.04

Finding the Fourth Proportional to 21,000.84, 31,501.32 and 14,407.04

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Solution

The fourth proportional to 21,000.84, 31,501.32 and 14,407.04 is: 21,610.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,000.84 : 31,501.32 = 14,407.04 : x
  2. Step 2: Convert to fraction form
    21,000.84/31,501.32 = 14,407.04/x
  3. Step 3: Cross multiply
    21,000.84x = 31,501.32 × 14,407.04
  4. Step 4: Simplify right side
    21,000.84x = 453,840,777.29
  5. Step 5: Solve for x
    x = 453,840,777.29/21,000.84
  6. Step 6: Final answer
    x = 21,610.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.